<template>
  <div class="component-upload-image">
    <el-upload :action="uploadImgUrl" list-type="picture-card" :on-success="handleUploadSuccess"
      :before-upload="handleBeforeUpload" :limit="limit" :on-error="handleUploadError" :on-exceed="handleExceed"
      name="file" :on-remove="handleRemove" :show-file-list="true" :headers="headers" :file-list="fileList"
      :on-preview="handlePictureCardPreview" :class="{ hide: this.fileList.length >= this.limit }" :data="extraData">
      <el-icon>
        <Plus />
      </el-icon>
      <template v-slot:tip>
        <div class="el-upload__tip">
          请上传
          <span v-if="fileSize">
            大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b>
          </span>
          <span v-if="fileType">
            格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b>
          </span>
          的文件
        </div>
      </template>
    </el-upload>

    <!-- 上传提示 -->
    <!-- v-if="showTip" -->
    <!--  -->

    <!-- -->

    <el-dialog v-model="dialogVisible" title="预览" width="800" append-to-body>
      <img :src="dialogImageUrl" style="display: block; max-width: 100%; margin: 0 auto" />
    </el-dialog>
  </div>
</template>

<script>
import { getToken, getCookie } from "@/utils/auth";


export default {
  props: {
    value: [String, Object, Array],
    // 额外参数
    extraData: {
      type: Object,
      default: () => ({}),
    },
    // 图片数量限制
    limit: {
      type: Number,
      default: 5,
    },
    // 大小限制(MB)
    fileSize: {
      type: Number,
      default: 5,
    },
    // 文件类型, 例如['png', 'jpg', 'jpeg']
    fileType: {
      type: Array,
      default: () => ["png", "jpg", "jpeg", "gif", "svg"],
    },
    // 是否显示提示
    isShowTip: {
      type: Boolean,
      default: true,
    },
    uploadImgUrl: {
      type: String,
      default: "",
    },
  },
  data() {
    return {
      dialogImageUrl: "",
      dialogVisible: false,
      hideUpload: false,
      baseUrl:
        import.meta.env.VITE_APP_ENV == "development"
          ? import.meta.env.VITE_APP_BASE_API
          : window.location.origin,
      // process.env.NODE_ENV === "development"
      //   ? process.env.VITE_APP_BASE_API
      //   : window.location.origin,
      // uploadImgUrl: process.env.VITE_APP_BASE_API + "/common/upload", // 上传的图片服务器地址
      headers: {
        Authorization: "Bearer " + getToken(),
        Authorization1: getCookie("member_id"),

      },
      fileList: [],
    };
  },
  watch: {
    value: {
      handler(val) {
        console.log('val', val)
        if (val) {
          // 首先将值转为数组
          const list = Array.isArray(val) ? val : this.value.split(",");

          // 然后将数组转为对象数组
          this.fileList = list.map((item) => {
            if (typeof item === "string") {
              if (item.indexOf(this.baseUrl) === -1) {
                item = { name: this.baseUrl + item, url: this.baseUrl + item };
              } else {
                item = { name: item, url: item };
              }
            }
            return item;
          });
          console.log('this.fileList', this.fileList)
        } else {
          this.fileList = [];

          return [];
        }
      },
      deep: true,
      immediate: true,
    },
  },
  computed: {
    // 是否显示提示
    showTip() {
      return this.isShowTip && (this.fileType || this.fileSize);
    },
  },
  methods: {
    // 删除图片
    handleRemove(index) {
      this.fileList.splice(index, 1);
      this.$emit("remove", this.listToString(this.fileList));
      // console.log("ssss22221", file);
      // console.log("ssss22221", this.fileList);
      // const findex = this.fileList.map((f) => f.name).indexOf(file.name);
      // if (findex > -1) {
      //   this.fileList.splice(findex, 1);
      //   console.log("ssss2222", res);

      //   this.$emit("input", this.listToString(this.fileList));
      // }
    },
    // 上传成功回调
    handleUploadSuccess(res) {
      console.log("ssss", res);
      const data = res.data;
      // this.fileList.push({ name: data.fileName||"", url: data.url });
      console.log(this.fileList);
      this.$emit("input", res);
      this.loading.close();
    },
    // 上传前loading加载
    handleBeforeUpload(file) {
      console.log(file);
      let isImg = false;
      if (this.fileType.length) {
        let fileExtension = "";
        if (file.name.lastIndexOf(".") > -1) {
          fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
        }
        console.log(fileExtension);
        isImg = this.fileType.some((type) => {
          if (file.type.indexOf(type) > -1) return true;
          if (fileExtension && fileExtension.indexOf(type) > -1) return true;
          return false;
        });
      } else {
        isImg = file.type.indexOf("image") > -1;
      }

      if (!isImg) {
        this.$message.error(
          `文件格式不正确, 请上传${this.fileType.join("/")}图片格式文件!`
        );
        return false;
      }
      if (this.fileSize) {
        const isLt = file.size / 1024 / 1024 < this.fileSize;
        if (!isLt) {
          this.$message.error(`上传头像图片大小不能超过 ${this.fileSize} MB!`);
          return false;
        }
      }
      this.loading = this.$loading({
        lock: true,
        text: "上传中",
        background: "rgba(0, 0, 0, 0.7)",
      });
    },
    // 文件个数超出
    handleExceed() {
      this.$message.error(`上传文件数量不能超过 ${this.limit} 个!`);
    },
    // 上传失败
    handleUploadError() {
      this.$message({
        type: "error",
        message: "上传失败",
      });
      this.loading.close();
    },
    // 预览
    handlePictureCardPreview(file) {
      this.dialogImageUrl = file.url;
      this.dialogVisible = true;
    },
    // 对象转成指定字符串分隔
    listToString(list, separator) {
      let strs = "";
      separator = separator || ",";
      for (let i in list) {
        strs += list[i].url.replace(this.baseUrl, "") + separator;
      }
      return strs != "" ? strs.substr(0, strs.length - 1) : "";
    },
  },
};
</script>
<style scoped lang="scss">
// .el-upload--picture-card 控制加号部分
::deep .hide .el-upload--picture-card {
  display: none;
}

// 去掉动画效果
::deep .el-list-enter-active,
::deep .el-list-leave-active {
  transition: all 0s;
}

::deep .el-list-enter,
.el-list-leave-active {
  opacity: 0;
  transform: translateY(0);
}
</style>
